Crash when attempting to merge two or more objects using Simplygon

Engine crashes on completing a simplygon merge of two actors.

Log:
Log file open, 07/13/17 14:30:50
LogInit:Display: Running engine for game: Simplygon_test_01
LogPlatformFile: Not using cached read wrapper
LogInit:Display: RandInit(-850670681) SRandInit(-850670681).
LogTaskGraph: Started task graph with 5 named threads and 10 total threads with 1 sets of task threads.
LogStats: Stats thread started at 0.119009
LogInit: Using libcurl 7.47.1
LogInit: - built for x86_64-pc-win32
LogInit: - supports SSL with OpenSSL/1.0.2g
LogInit: - supports HTTP deflate (compression) using libz 1.2.8
LogInit: - other features:
LogInit: CURL_VERSION_SSL
LogInit: CURL_VERSION_LIBZ
LogInit: CURL_VERSION_IPV6
LogInit: CURL_VERSION_ASYNCHDNS
LogInit: CURL_VERSION_LARGEFILE
LogInit: CURL_VERSION_IDN
LogInit: CurlRequestOptions (configurable via config and command line):
LogInit: - bVerifyPeer = false - Libcurl will NOT verify peer certificate
LogInit: - bUseHttpProxy = false - Libcurl will NOT use HTTP proxy
LogInit: - bDontReuseConnections = false - Libcurl will reuse connections
LogInit: - CertBundlePath = nullptr - Libcurl will use whatever was configured at build time.
OCULUS: Info: [CAPI] LibOVR module is located at C:\Program Files\Oculus\Support\oculus-runtime\LibOVRRT64_1.dll
OCULUS: Debug: Connected to the server running version (prod = 1).1.16.0(build = 409268) feature version = 0. Client runs version (prod = 1).1.16.0(build = 409268) feature version = 0
OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/ProfileDB.json
OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/Profiles.json
OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/ProfileDB.json
OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/Profiles.json
OCULUS: Debug: [HMDState] Using default profile default
OCULUS: Info: IAD changed to 63.5mm
OCULUS: Debug: Creating factory
LogHMD: GearVR: Emulating GearVR using Oculus Rift!
LogInit: Build: ++UE4+Release-4.16-CL-3514769
LogInit: Engine Version: 4.16.2-3514769+++UE4+Release-4.16
LogInit: Compatible Engine Version: 4.16.0-3452394+++UE4+Release-4.16
LogInit: Net CL: 3452394
LogDevObjectVersion: Number of dev versions registered: 16
LogDevObjectVersion: Dev-Blueprints (B0D832E4-1F89-4F0D-ACCF-7EB736FD4AA2): 9
LogDevObjectVersion: Dev-Build (E1C64328-A22C-4D53-A36C-8E866417BD8C): 0
LogDevObjectVersion: Dev-Core (375EC13C-06E4-48FB-B500-84F0262A717E): 2
LogDevObjectVersion: Dev-Editor (E4B068ED-F494-42E9-A231-DA0B2E46BB41): 17
LogDevObjectVersion: Dev-Framework (CFFC743F-43B0-4480-9391-14DF171D2073): 23
LogDevObjectVersion: Dev-Mobile (B02B49B5-BB20-44E9-A304-32B752E40360): 0
LogDevObjectVersion: Dev-Networking (A4E4105C-59A1-49B5-A7C5-40C4547EDFEE): 0
LogDevObjectVersion: Dev-Online (39C831C9-5AE6-47DC-9A44-9C173E1C8E7C): 0
LogDevObjectVersion: Dev-Physics (78F01B33-EBEA-4F98-B9B4-84EACCB95AA2): 0
LogDevObjectVersion: Dev-Platform (6631380F-2D4D-43E0-8009-CF276956A95A): 0
LogDevObjectVersion: Dev-Rendering (12F88B9F-8875-4AFC-A67C-D90C383ABD29): 15
LogDevObjectVersion: Dev-Sequencer (7B5AE74C-D270-4C10-A958-57980B212A5A): 4
LogDevObjectVersion: Dev-VR (D7296918-1DD6-4BDD-9DE2-64A83CC13884): 0
LogDevObjectVersion: Dev-LoadTimes (C2A15278-BFE7-4AFE-6C17-90FF531DF755): 1
LogDevObjectVersion: Private-Geometry (6EACA3D4-40EC-4CC1-B786-8BED09428FC5): 1
LogDevObjectVersion: Dev-AnimPhys (29E575DD-E0A3-4627-9D10-D276232CDCEA): 3
LogInit: Compiled (64-bit): Jun 29 2017 02:03:24
LogInit: Compiled with Visual C++: 19.00.24215.01
LogInit: Build Configuration: Development
LogInit: Branch Name: ++UE4+Release-4.16
LogInit: Command line:
LogInit: Base directory: C:/Program Files/Epic Games/UE_4.16/Engine/Binaries/Win64/
LogInit: Installed Engine Build: 1
LogInit: Presizing for max 8388607 objects, including 0 objects not considered by GC, pre-allocating 0 bytes for permanent pool.
LogInit: Object subsystem initialized
[2017.07.13-11.30.51:164][ 0]LogInit: Selected Device Profile: [Windows]
[2017.07.13-11.30.51:164][ 0]LogInit: Applying CVar settings loaded from the selected device profile: [Windows]
[2017.07.13-11.30.51:172][ 0]LogInit: Computer: PROTON14
[2017.07.13-11.30.51:172][ 0]LogInit: User: r2d2
[2017.07.13-11.30.51:172][ 0]LogInit: CPU Page size=4096, Cores=6
[2017.07.13-11.30.51:172][ 0]LogInit: High frequency timer resolution =3.126873 MHz
[2017.07.13-11.30.51:172][ 0]LogMemory: Memory total: Physical=31.9GB (32GB approx)
[2017.07.13-11.30.51:172][ 0]LogMemory: Platform Memory Stats for Windows
[2017.07.13-11.30.51:172][ 0]LogMemory: Process Physical Memory: 279.00 MB used, 279.00 MB peak
[2017.07.13-11.30.51:172][ 0]LogMemory: Process Virtual Memory: 270.28 MB used, 270.28 MB peak
[2017.07.13-11.30.51:172][ 0]LogMemory: Physical Memory: 9561.77 MB used, 23151.52 MB free, 32713.30 MB total
[2017.07.13-11.30.51:172][ 0]LogMemory: Virtual Memory: 685.78 MB used, 23151.52 MB free, 134217728.00 MB total
[2017.07.13-11.30.51:274][ 0]LogInit: Using OS detected language (ru-RU).
[2017.07.13-11.30.51:274][ 0]LogInit: Using OS detected locale (uk-UA).
[2017.07.13-11.30.51:277][ 0]LogTextLocalizationManager: No localization for ‘ru-RU’ exists, so ‘en’ will be used for the language.
[2017.07.13-11.30.51:277][ 0]LogTextLocalizationManager: No localization for ‘uk-UA’ exists, so ‘en’ will be used for the locale.
[2017.07.13-11.30.52:315][ 0]LogD3D11RHI: D3D11 adapters:
[2017.07.13-11.30.52:972][ 0]LogD3D11RHI: 0. ‘NVIDIA GeForce GTX 980’ (Feature Level 11_0)
[2017.07.13-11.30.52:972][ 0]LogD3D11RHI: 4060/0/16356 MB DedicatedVideo/DedicatedSystem/SharedSystem, Outputs:2, VendorId:0x10de
[2017.07.13-11.30.52:974][ 0]LogD3D11RHI: 1. ‘Microsoft Basic Render Driver’ (Feature Level 11_0)
[2017.07.13-11.30.52:974][ 0]LogD3D11RHI: 0/0/16356 MB DedicatedVideo/DedicatedSystem/SharedSystem, Outputs:0, VendorId:0x1414
[2017.07.13-11.30.52:974][ 0]LogD3D11RHI: Chosen D3D11 Adapter: 0
[2017.07.13-11.30.52:980][ 0]LogD3D11RHI: Creating new Direct3DDevice
[2017.07.13-11.30.52:980][ 0]LogD3D11RHI: GPU DeviceId: 0x13c0 (for the marketing name, search the web for “GPU Device Id”)
[2017.07.13-11.30.52:980][ 0]LogWindows: EnumDisplayDevices:
[2017.07.13-11.30.52:980][ 0]LogWindows: 0. ‘NVIDIA GeForce GTX 980’ (P:0 D:1)
[2017.07.13-11.30.52:981][ 0]LogWindows: 1. ‘NVIDIA GeForce GTX 980’ (P:1 D:1)
[2017.07.13-11.30.52:981][ 0]LogWindows: 2. ‘NVIDIA GeForce GTX 980’ (P:0 D:0)
[2017.07.13-11.30.52:981][ 0]LogWindows: 3. ‘NVIDIA GeForce GTX 980’ (P:0 D:0)
[2017.07.13-11.30.52:981][ 0]LogWindows: DebugString: FoundDriverCount:4
[2017.07.13-11.30.52:981][ 0]LogD3D11RHI: Adapter Name: NVIDIA GeForce GTX 980
[2017.07.13-11.30.52:981][ 0]LogD3D11RHI: Driver Version: 382.05 (internal:22.21.13.8205, unified:382.05)
[2017.07.13-11.30.52:981][ 0]LogD3D11RHI: Driver Date: 5-1-2017
[2017.07.13-11.30.52:981][ 0]LogRHI: Texture pool is 1361 MB (70% of 1945 MB)
[2017.07.13-11.30.53:602][ 0]LogD3D11RHI: Async texture creation enabled
[2017.07.13-11.30.53:760][ 0]LogD3D11RHI: GPU Timing Frequency: 1000.000000 (Debug: 2 1)
[2017.07.13-11.30.53:809][ 0]LogShaderCompilers: Guid format shader working directory is 9 characters bigger than the processId version (E:/Unreal Projects/Simplygon_test_01/Intermediate/Shaders/WorkingDirectory/3656/).
[2017.07.13-11.30.53:809][ 0]LogShaderCompilers: Cleaned the shader compiler working directory ‘C:/Users/r2d2/AppData/Local/Temp/UnrealShaderWorkingDir/722566AB4813832E74E65FA7C371C49E/’.
[2017.07.13-11.30.53:809][ 0]LogShaderCompilers:Display: Using Local Shader Compiler.
[2017.07.13-11.30.56:130][ 0]LogTemp:Display: Loaded TP AllDesktopTargetPlatform
[2017.07.13-11.30.56:207][ 0]LogTemp:Display: Loaded TP MacClientTargetPlatform
[2017.07.13-11.30.56:282][ 0]LogTemp:Display: Loaded TP MacNoEditorTargetPlatform
[2017.07.13-11.30.56:359][ 0]LogTemp:Display: Loaded TP MacServerTargetPlatform
[2017.07.13-11.30.56:433][ 0]LogTemp:Display: Loaded TP MacTargetPlatform
[2017.07.13-11.30.56:508][ 0]LogTemp:Display: Loaded TP WindowsClientTargetPlatform
[2017.07.13-11.30.56:584][ 0]LogTemp:Display: Loaded TP WindowsNoEditorTargetPlatform
[2017.07.13-11.30.56:663][ 0]LogTemp:Display: Loaded TP WindowsServerTargetPlatform
[2017.07.13-11.30.56:729][ 0]LogTemp:Display: Loaded TP WindowsTargetPlatform
[2017.07.13-11.30.56:804][ 0]LogTemp:Display: Loaded TP AndroidTargetPlatform
[2017.07.13-11.30.56:874][ 0]LogTemp:Display: Loaded TP Android_ASTCTargetPlatform
[2017.07.13-11.30.56:946][ 0]LogTemp:Display: Loaded TP Android_ATCTargetPlatform
[2017.07.13-11.30.57:017][ 0]LogTemp:Display: Loaded TP Android_DXTTargetPlatform
[2017.07.13-11.30.57:089][ 0]LogTemp:Display: Loaded TP Android_ETC1TargetPlatform
[2017.07.13-11.30.57:164][ 0]LogTemp:Display: Loaded TP Android_ETC2TargetPlatform
[2017.07.13-11.30.57:318][ 0]LogTemp:Display: Loaded TP Android_MultiTargetPlatform
[2017.07.13-11.30.57:318][ 0]LogTemp:Display: Loaded TP Android_PVRTCTargetPlatform
[2017.07.13-11.30.57:380][ 0]LogTemp:Display: Loaded TP HTML5TargetPlatform
[2017.07.13-11.30.57:507][ 0]LogTemp:Display: Loaded TP IOSTargetPlatform
[2017.07.13-11.30.57:549][ 0]LogTemp:Display: Loaded TP TVOSTargetPlatform
[2017.07.13-11.30.57:620][ 0]LogTemp:Display: Loaded TP LinuxClientTargetPlatform
[2017.07.13-11.30.57:692][ 0]LogTemp:Display: Loaded TP LinuxNoEditorTargetPlatform
[2017.07.13-11.30.57:763][ 0]LogTemp:Display: Loaded TP LinuxServerTargetPlatform
[2017.07.13-11.30.57:835][ 0]LogTemp:Display: Loaded TP LinuxTargetPlatform
[2017.07.13-11.30.57:835][ 0]LogTargetPlatformManager:Display: Building Assets For Windows
[2017.07.13-11.30.58:554][ 0]LogDerivedDataCache:Display: Max Cache Size: 512 MB
[2017.07.13-11.30.58:655][ 0]LogDerivedDataCache: Loaded boot cache 0.10s 90MB C:/Users/r2d2/AppData/Local/UnrealEngine/4.16/DerivedDataCache/Boot.ddc.
[2017.07.13-11.30.58:655][ 0]LogDerivedDataCache:Display: Loaded Boot cache: C:/Users/r2d2/AppData/Local/UnrealEngine/4.16/DerivedDataCache/Boot.ddc
[2017.07.13-11.30.58:655][ 0]LogDerivedDataCache: FDerivedDataBackendGraph: Pak pak cache file E:/Unreal Projects/Simplygon_test_01/DerivedDataCache/DDC.ddp not found, will not use a pak cache.
[2017.07.13-11.30.58:655][ 0]LogDerivedDataCache: Unable to find inner node Pak for hierarchical cache Hierarchy.
[2017.07.13-11.30.58:655][ 0]LogDerivedDataCache: FDerivedDataBackendGraph: CompressedPak pak cache file E:/Unreal Projects/Simplygon_test_01/DerivedDataCache/Compressed.ddp not found, will not use a pak cache.
[2017.07.13-11.30.58:655][ 0]LogDerivedDataCache: Unable to find inner node CompressedPak for hierarchical cache Hierarchy.
[2017.07.13-11.30.58:677][ 0]LogDerivedDataCache:Display: Pak cache opened for reading …/…/…/Engine/DerivedDataCache/Compressed.ddp.
[2017.07.13-11.30.59:218][ 0]LogDerivedDataCache: Using Local data cache path C:/Users/r2d2/AppData/Local/UnrealEngine/Common/DerivedDataCache: Writable
[2017.07.13-11.30.59:232][ 0]LogMaterial: Verifying Global Shaders for PCD3D_SM5
[2017.07.13-11.30.59:233][ 0]LogSlate: Using Freetype 2.6.0
[2017.07.13-11.30.59:233][ 0]LogSlate: SlateFontCache - WITH_FREETYPE: 1, WITH_HARFBUZZ: 1
[2017.07.13-11.30.59:233][ 0]LogSlate: SlateFontCache - WITH_FREETYPE: 1, WITH_HARFBUZZ: 1
[2017.07.13-11.30.59:644][ 0]LogInit: Selected Device Profile: [Windows]
[2017.07.13-11.30.59:721][ 0]LogContentStreaming: Texture pool size is 0.00 MB
[2017.07.13-11.30.59:926][ 0]LogMeshUtilities: Using QuadricMeshReduction for automatic static mesh reduction
[2017.07.13-11.31.04:092][ 0]LogSimplygon:Display: Initialized with Simplygon (null).@305_18f808c3cf724e5a994f57de5c83cc4b
[2017.07.13-11.31.04:092][ 0]LogMeshUtilities: Using SimplygonMeshReduction for automatic skeletal mesh reduction
[2017.07.13-11.31.04:092][ 0]LogMeshUtilities: Using SimplygonMeshReduction for automatic mesh merging
[2017.07.13-11.31.04:179][ 0]LogMeshUtilities: Using SimplygonSwarm for distributed automatic mesh merging
[2017.07.13-11.31.04:891][ 0]LogNetVersion: Simplygon_test_01 , NetCL: 3452394, EngineNetVer: 2, GameNetVer: 0 (Checksum: 645969707)
[2017.07.13-11.31.04:964][ 0]LogAssetRegistry: FAssetRegistry took 0.0258 seconds to start up
[2017.07.13-11.31.05:011][ 0]LogPackageLocalizationCache: Processed 4 localized package path(s) for 1 prioritized culture(s) in 0.015694 seconds
[2017.07.13-11.31.05:016][ 0]LogUObjectArray: 34194 objects as part of root set at end of initial load.
[2017.07.13-11.31.05:016][ 0]LogUObjectAllocator: 7260424 out of 0 bytes used by permanent object pool.
[2017.07.13-11.31.05:016][ 0]LogUObjectArray: CloseDisregardForGC: 0/0 objects in disregard for GC pool
[2017.07.13-11.31.05:108][ 0]LogInit: WinSock: version 1.1 (2.2), MaxSocks=32767, MaxUdp=65467
[2017.07.13-11.31.08:264][ 0]LogTcpMessaging: Initializing TcpMessaging bridge
[2017.07.13-11.31.08:315][ 0]LogUdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
[2017.07.13-11.31.09:034][ 0]LogMaterial: Uniform references updated for custom material expression Custom.
[2017.07.13-11.31.09:588][ 0]SourceControl: Info Source control is disabled
[2017.07.13-11.31.09:589][ 0]SourceControl: Info Source control is disabled
[2017.07.13-11.31.09:659][ 0]SourceControl: Info Source control is disabled
[2017.07.13-11.31.09:726][ 0]SourceControl: Info Source control is disabled
[2017.07.13-11.31.10:706][ 0]LogAndroidPermission: UAndroidPermissionCallbackProxy::GetInstance
[2017.07.13-11.31.11:550][ 0]LogEngine: Initializing Engine…
[2017.07.13-11.31.11:551][ 0]LogHMD: Oculus plugin initialized. Version: 4.16.2-3514769+++UE4+Release-4.16, LibOVR: 1.16.0, SDK: 1.12.0, built Jun 29 2017, 02:10:56
[2017.07.13-11.31.11:774][ 0]OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/ProfileDB.json
[2017.07.13-11.31.11:774][ 0]OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/Profiles.json
[2017.07.13-11.31.11:774][ 0]OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/ProfileDB.json
[2017.07.13-11.31.11:774][ 0]OCULUS: Debug: Failed to open file: C:\Users\r2d2\AppData\Local\Oculus/Profiles.json
[2017.07.13-11.31.11:774][ 0]OCULUS: Debug: [HMDState] Using default profile default
[2017.07.13-11.31.11:774][ 0]OCULUS: Info: IAD changed to 63.5mm
[2017.07.13-11.31.11:774][ 0]LogStats: UGameplayTagsManager::ConstructGameplayTagTree: Construct from data asset - 0.000 s
[2017.07.13-11.31.11:774][ 0]LogStats: UGameplayTagsManager::ConstructGameplayTagTree: GameplayTagTreeChangedEvent.Broadcast - 0.000 s
[2017.07.13-11.31.11:965][ 0]LogAIModule: Creating AISystem for world Untitled
[2017.07.13-11.31.11:982][ 0]LogInit: XAudio2 using ‘Наушники (Устройство с поддержкой High Definition Audio)’ : 2 channels at 44.1 kHz using 16 bits per sample (channel mask 0x3)
[2017.07.13-11.31.11:995][ 0]LogInit: FAudioDevice initialized.
[2017.07.13-11.31.12:039][ 0]LogDerivedDataCache: Saved boot cache 0.04s 90MB C:/Users/r2d2/AppData/Local/UnrealEngine/4.16/DerivedDataCache/Boot.ddc.
[2017.07.13-11.31.12:054][ 0]LogInit: Texture streaming: Enabled
[2017.07.13-11.31.12:196][ 0]LogEngineSessionManager: EngineSessionManager initialized
[2017.07.13-11.31.12:196][ 0]LogEngineSessionManager: EngineSessionManager sent abnormal shutdown report. Type=Crashed, SessionId={DAB3A639-4908-D17D-11D7-93A9D81B6949}
[2017.07.13-11.31.12:519][ 0]LogInit: Transaction tracking system initialized
[2017.07.13-11.31.12:992][ 0]BlueprintLog: New page: Editor Load
[2017.07.13-11.31.14:385][ 0]LocalizationService: Info Localization service is disabled
[2017.07.13-11.31.15:387][ 0]LogConsoleResponse:Display:
[2017.07.13-11.31.15:550][ 0]LogCook:Display: Max memory allowance for cook 16384mb min free memory 0mb
[2017.07.13-11.31.15:550][ 0]LogCook:Display: Mobile HDR setting 1
[2017.07.13-11.31.16:380][ 0]LogFileCache: Scanning file cache for directory ‘E:/Unreal Projects/Simplygon_test_01/Content/’ took 0.01s
[2017.07.13-11.31.17:061][ 0]SourceControl: Info Source control is disabled
[2017.07.13-11.31.17:061][ 0]Cmd: MAP LOAD FILE=“E:/Unreal Projects/Simplygon_test_01/Content/StarterContent/Maps/Minimal_Default.umap” TEMPLATE=0 SHOWPROGRESS=1 FEATURELEVEL=3
[2017.07.13-11.31.17:061][ 0]LightingResults: New page: Lighting Build
[2017.07.13-11.31.17:125][ 0]MapCheck: New page: Map Check
[2017.07.13-11.31.17:125][ 0]LightingResults: New page: Lighting Build
[2017.07.13-11.31.17:516][ 0]LogAIModule: Creating AISystem for world Minimal_Default
[2017.07.13-11.31.17:524][ 0]LogEditorServer: Finished looking for orphan Actors (0.000 secs)
[2017.07.13-11.31.17:535][ 0]Cmd: MAP CHECKDEP NOCLEARLOG
[2017.07.13-11.31.17:596][ 0]MapCheck: Info Map check complete: 0 Error(s), 0 Warning(s), took 60.774ms to complete.
[2017.07.13-11.31.17:596][ 0]LogFileHelpers: Loading map ‘Minimal_Default’ took 0.535
[2017.07.13-11.31.17:668][ 0]LogWindowsTextInputMethodSystem:Display: IME system now deactivated.
[2017.07.13-11.31.17:892][ 0]LogCrashTracker: Crashtracker disabled due to settings.
[2017.07.13-11.31.17:940][ 0]LogCollectionManager: Loaded 0 collections in 0.001745 seconds
[2017.07.13-11.31.18:043][ 0]LogFileCache: Scanning file cache for directory ‘E:/Unreal Projects/Simplygon_test_01/Saved/Collections/’ took 0.01s
[2017.07.13-11.31.18:043][ 0]LogFileCache: Scanning file cache for directory ‘E:/Unreal Projects/Simplygon_test_01/Content/Developers/r2d2/Collections/’ took 0.01s
[2017.07.13-11.31.18:043][ 0]LogFileCache: Scanning file cache for directory ‘E:/Unreal Projects/Simplygon_test_01/Content/Collections/’ took 0.01s
[2017.07.13-11.31.18:043][ 0]LogCollectionManager: Rebuilt the GUID cache for 0 collections in 0.000003 seconds
[2017.07.13-11.31.18:055][ 0]LogContentBrowser: Native class hierarchy populated in 0.0116 seconds. Added 2330 classes and 493 folders.
[2017.07.13-11.31.18:152][ 0]LogContentBrowser: Native class hierarchy updated for ‘WidgetCarousel’ in 0.0007 seconds. Added 0 classes and 0 folders.
[2017.07.13-11.31.18:197][ 0]LogContentBrowser: Native class hierarchy updated for ‘AddContentDialog’ in 0.0006 seconds. Added 0 classes and 0 folders.
[2017.07.13-11.31.18:213][ 0]LogSlate: Took 0.000213 seconds to synchronously load lazily loaded font ‘…/…/…/Engine/Content/Slate/Fonts/Roboto-Regular.ttf’ (155K)
[2017.07.13-11.31.18:215][ 0]LogSlate: Took 0.000172 seconds to synchronously load lazily loaded font ‘…/…/…/Engine/Content/Slate/Fonts/Roboto-Bold.ttf’ (160K)
[2017.07.13-11.31.18:222][ 0]LogSlate: Took 0.000209 seconds to synchronously load lazily loaded font ‘…/…/…/Engine/Content/Editor/Slate/Fonts/FontAwesome.ttf’ (139K)
[2017.07.13-11.31.18:332][ 0]LogRenderer: Reallocating scene render targets to support 1208x924 NumSamples 1 (Frame:1).
[2017.07.13-11.31.18:461][ 0]LogUObjectGlobals:Warning: Failed to find object ‘Class None.’
[2017.07.13-11.31.18:545][ 0]LogContentBrowser: Native class hierarchy updated for ‘HierarchicalLODOutliner’ in 0.0007 seconds. Added 1 classes and 2 folders.
[2017.07.13-11.31.18:545][ 0]LogLoad: (Engine Initialization) Total time: 29.38 seconds
[2017.07.13-11.31.18:545][ 0]LogLoad: (Engine Initialization) Total Blueprint compile time: 0.12 seconds
[2017.07.13-11.31.18:545][ 0]LogExternalProfiler: Found external profiler: VSPerf
[2017.07.13-11.31.18:545][ 0]LogExternalProfiler: Using external profiler: VSPerf
[2017.07.13-11.31.18:559][ 0]LogOcInput: OculusInput pre-init called
[2017.07.13-11.31.18:574][ 0]LogOcInput: OculusInput is initialized. Init status 0. Runtime version: 1.16.0
[2017.07.13-11.31.18:574][ 0]LogHMD: Starting GearVRController plugin
[2017.07.13-11.31.18:592][ 0]LogContentStreaming: Texture pool size now 3000 MB
[2017.07.13-11.31.18:606][ 0]LogSlate: Took 0.000223 seconds to synchronously load lazily loaded font ‘…/…/…/Engine/Content/Slate/Fonts/Roboto-Light.ttf’ (159K)
[2017.07.13-11.31.18:619][ 1]LogAssetRegistry: Asset discovery search completed in 13.6775 seconds
[2017.07.13-11.31.18:621][ 1]LogCollectionManager: Rebuilt the object cache for 0 collections in 0.000001 seconds (found 0 objects)
[2017.07.13-11.31.18:621][ 1]LogCollectionManager: Fixed up redirectors for 0 collections in 0.000031 seconds (updated 0 objects)
[2017.07.13-11.31.21:301][304]LogEditorViewport: Clicking on Actor (LMB): StaticMeshActor (Table)
[2017.07.13-11.31.21:548][320]LogEditorViewport: Clicking on Actor (CTRL LMB): StaticMeshActor (Chair)
[2017.07.13-11.31.38:247][794]LogSlate: Took 0.000162 seconds to synchronously load lazily loaded font ‘…/…/…/Engine/Content/Slate/Fonts/Roboto-Light.ttf’ (159K)
[2017.07.13-11.31.38:347][794]LogMaterialUtilities: Flattening material: M_TableRound
[2017.07.13-11.31.38:350][794]LogMaterial: Missing cached shader map for material FExportMaterialRenderer M_TableRound, compiling.
[2017.07.13-11.31.38:982][794]LogMaterialUtilities: Material flattening done. (M_TableRound)
[2017.07.13-11.31.38:984][794]LogMaterialUtilities: Flattening material: M_Chair
[2017.07.13-11.31.38:987][794]LogMaterial: Missing cached shader map for material FExportMaterialRenderer M_Chair, compiling.
[2017.07.13-11.31.39:262][794]LogMaterialUtilities: Material flattening done. (M_Chair)

same issue. Will there be any comment from developers? This bug is still didn’t fixed neither in 4.15 nor in 4.16